The counties’ lawsuits announced Tuesday are similar to the complaints filed earlier this month by 28 other counties in the state. They allege that the makers of prescription painkillers engaged in deceptive marketing campaigns to sell their products.

Two thirds of Wisconsin’s counties have now filed lawsuits.

Named in the complaints are Purdue Pharma, Johnson & Johnson, Endo Health Solutions, Inc. and subsidiaries of the companies. All have denied the allegations in the Wisconsin lawsuits and others across the country.